sides = []
count = 0
while count < 3:
    x = input("Enter length of triangles: ")
    if not x.isdigit() or not float(x) >= 1:
        print(f"It's impossible to create Pythagorean Triples with a non-positive integer {x}")
        exit()
    sides.append(int(x))
    count += 1

sides.sort()

if sides[0]**2 + sides[1]**2 == sides[2]**2:
    print("The sides {},{}, and {} are Pythagorean Triples".format(*sides))
else:
    print("The sides {}, {}, and {} are not Pythagorean Triples".format(*sides))